EP 2918536 A1 20150916 - Condition monitoring of vertical transport equipment
Title (en)
Condition monitoring of vertical transport equipment
Title (de)
Zustandsüberwachung einer vertikalen Transportausrüstung
Title (fr)
Surveillance de l'état de l'équipement de transport vertical
Publication
Application
Priority
EP 14159107 A 20140312
Abstract (en)
A method and arrangement for detecting a working condition of a mechanical brake of vertical transport equipment, the vertical transport equipment comprising a frequency converter, an electrical motor and a mechanical brake. In the method, movement of the vertical transport equipment being controlled using the frequency converter that is adapted to feed electrical power to a motor and the mechanical brake is adapted to mechanically hold a car or load of the vertical transport equipment when said car or load is stationary. The method comprises storing data relating to deceleration of the car or load for use as reference data, controlling the mechanical brake into a closed position for decelerating movement of the car or load, determining test data relating to the deceleration of the car or load from measured information or from a control system of the frequency converter, comparing the reference data with the test data, and producing an alarm signal on the basis of the comparison between the reference data and the test data.
IPC 8 full level
B66B 1/32 (2006.01)
CPC (source: CN EP US)
B66B 1/32 (2013.01 - CN); B66B 5/0018 (2013.01 - CN); B66B 5/0031 (2013.01 - EP US)
Citation (search report)
- [XYI] US 2003205703 A1 20031106 - MCCORMICK STEPHEN J [US], et al
- [Y] EP 2090541 A1 20090819 - MITSUBISHI ELECTRIC CORP [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2918536 A1 20150916; EP 2918536 B1 20220622; CN 104909234 A 20150916; CN 104909234 B 20180925; US 2015259174 A1 20150917
DOCDB simple family (application)
EP 14159107 A 20140312; CN 201510102932 A 20150309; US 201514645143 A 20150311